80caa1eb4a
These symbols are somewhat interesting in that they create non-existing segments, which as far as I know is the only way to create segments that don't contain any sections. Final part of part of PR50760. Like D106629, but for segments instead of sections. I'm not aware of anything that needs this in practice. Differential Revision: https://reviews.llvm.org/D106767
78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
//===- OutputSegment.h ------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLD_MACHO_OUTPUT_SEGMENT_H
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#define LLD_MACHO_OUTPUT_SEGMENT_H
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#include "OutputSection.h"
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#include "Symbols.h"
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#include "lld/Common/LLVM.h"
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#include "llvm/ADT/TinyPtrVector.h"
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#include <limits>
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#include <vector>
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namespace lld {
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namespace macho {
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namespace segment_names {
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constexpr const char dataConst[] = "__DATA_CONST";
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constexpr const char dataDirty[] = "__DATA_DIRTY";
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constexpr const char data[] = "__DATA";
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constexpr const char dwarf[] = "__DWARF";
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constexpr const char import[] = "__IMPORT";
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constexpr const char ld[] = "__LD"; // output only with -r
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constexpr const char linkEdit[] = "__LINKEDIT";
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constexpr const char llvm[] = "__LLVM";
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constexpr const char pageZero[] = "__PAGEZERO";
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constexpr const char textExec[] = "__TEXT_EXEC";
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constexpr const char text[] = "__TEXT";
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} // namespace segment_names
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class OutputSection;
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class InputSection;
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class OutputSegment {
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public:
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void addOutputSection(OutputSection *os);
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void sortOutputSections();
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void assignAddressesToStartEndSymbols();
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const std::vector<OutputSection *> &getSections() const { return sections; }
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size_t numNonHiddenSections() const;
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uint64_t fileOff = 0;
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uint64_t fileSize = 0;
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uint64_t addr = 0;
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uint64_t vmSize = 0;
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int inputOrder = UnspecifiedInputOrder;
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StringRef name;
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uint32_t maxProt = 0;
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uint32_t initProt = 0;
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uint8_t index;
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llvm::TinyPtrVector<Defined *> segmentStartSymbols;
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llvm::TinyPtrVector<Defined *> segmentEndSymbols;
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private:
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std::vector<OutputSection *> sections;
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};
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extern std::vector<OutputSegment *> outputSegments;
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void sortOutputSegments();
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OutputSegment *getOrCreateOutputSegment(StringRef name);
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} // namespace macho
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} // namespace lld
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#endif
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